PEI used as an effective non-viral gene delivery vector in vitro and in vivo1). Although it has high transfection efficiency, it makes a damage to normal cell membrane2,3). In order to improve the transfection efficiency of non-viral vector and to reduce the cytotoxicity of polyethylenimine (PEI), the branched PEI (25kDa) and all-trans-retinoic acid (ATRA) conjugates were synthesized by carbodiimido method (PRA). The synthesis was confirmed by NMR, FT-IR and UV-spectrophotometer, There physicochemical properties were characterized by gel electrophoresis, particle size and zeta potential to estimate a possibility as a gene carrier. The transfection efficiency of PRA in NIH3T3 cell was up to 1.5 times higher than that of PEI (N/P 15). The cytotoxicity of PRA was also measured by MTT assay. PRA conjugates showed lower cytotoxicity compared with the PEI. Therefore, the PRA conjugate may be good candidate for non-viral gene carrier.
저자
Kyong Mi Park [ Department of Biotechnology, The Catholic University of Korea ]
Kun Na [ Department of Biotechnology, The Catholic University of Korea ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동